<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>bootstrap 栅格系统</title>
	<script type="text/javascript" src="js/jquery-1.12.4.min.js"></script>
	<script type="text/javascript" src="js/bootstrap.min.js"></script>
	<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
	<style type="text/css">


		div[class*='col-']{
			background-color:gold;
			border:1px solid #000;
			height:60px;
		}

	</style>
</head>
<body>

	<div class="container">
		<div class="row">
			<div class="col-lg-4">
				<div class="row">
					<div class="col-sm-3">01</div>
					<div class="col-sm-3">02</div>
					<div class="col-sm-3">03</div>
					<div class="col-sm-3">04</div>
				</div>
			</div>
			<div class="col-lg-4">2</div>
			<div class="col-lg-4">3</div>
			
		</div>		
	</div>
</body>
</html>